Assigitoe of theeb fotjbths



(No Model.)

G. CARLYLE.

MANUFACTURE OF PEARL BUTTONS. V No. 311,958. Patented Feb. 10. 1885.

Unirnn Erarns iParaivr rriea.

GEORGE CARLYLE, OF ADRIAN, MICHIGAN, ASSIGNOR OF THREE FOURTHS TO LOUIS A. G. WAGNER, GEORGE VT. WVAGNER, AND JOHN W. WAGNER,

ALL OF SAME PLACE.

MANUFACTURE OF PEARL BUTTONS.

SPECII-ICATIQN forming part of Letters Patent No. 311,958, dated February 10, 1885.

(No model.)

To (til whom it may concern:

Be it known that I, GEORGE CARLYLE, of Adrian, in'the county of Lenawee and State of Michigan, have invented new and useful Improvements in Process of Making Buttons; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying d rawings, which form a part of this specification.

. This invention relates to certain new and useful improvements in the process of making buttons, as hereinafter explained, reference being had to the accompanying dra\\'ings,'in Which Figure 1 is an elevation of a collar stud'or button,with the outline of the die which forms the head and also the die that forms the neck. Fig. 2 is a section of a'bntto'n proper,with the die which forms the face.

In the accompanying drawings, which form a part of this specification, A represents the foot, 13 the neck, and G the head, of a pearl collar-button. The blank from which the button is formed is chucked at the end of a re volving spindle, and its exposed end is forced into contact with the die D, revolving on a shaft at right angles, to the axis of the chuck, and which is of the proper shape to form the head, and which may or not, as preferred, rc-

volve in an opposite direction to that of the blank presented. This die is made of emery, corundum, or other equivalent material cinploycd for grinding purposes, and its attrition against the end of the blank forms the head. The neck is formed in the same manner by presenting the die E(which revolves on ashaft whose axis is parallel to that of the chuck) to the side of the blank held in the chuck, as before described; and as the mechanism employed and described in my application for 0 Letters Patent thereon is provided with suitable stops, which limit to a certainty the action of this device, it follows as a matter of necessity that each button formed in this way by attrition is precisely like its fellow. F 5 represents the flat button, the blank of which is chucked, as already described, and presented to the die G, which performs the same function as isdone by the die D, the dies simply varying in the form necessary to give a differcut form required to the button.

Buttons made of pearl by the attrition or grinding process are far superior in finish and in uniformity of appearance and size to those made by the ordinary process of turning, and will be preferred bythe using public, to whom they can be furnished at a less cost of manufacture than where the turning process is employed.

\Vhat I claim as my invention is- The process of manufacturing a button herein set forth, which consists in settingthe blank in a chuck, then revolving said blank in contact with a revolving grinding-surface having its acting face at right angles to the axis of the chuck, and then revolving it in contact with another revolving grinding surface whose axis is substantially parallel to that of the chuck, substantially as described.

GEORGE CARLYLE.

W'i tn eSSes:

H. S. Sermons, J. PAUL MAYER. 

